1. Remember when…Serena and Venus came onto the scene in the late 1990s wearing beads and braids? 2. Serena sports one of her classic Puma tennis dresses at the 1999 US Open 3. Venus rocks a cutout tennis dress at the 1999 Grand Slam Cup 4. A young Serena Williams wears a two-tone tennis dress at the 2000 Australian Open 5. Venus rocks one of her signature cutout tennis outfits at Wimbledon in 2000 6. Serena goes pastel purple at the eStyle.Com Classic in 2000 7. Venus and Serena looked super stylish at the 2000 Sydney Olympics 8. Serena is pretty in pink 2001 French Open 9. Venus rocks a spaghetti strap halter at the 2001 US Open 10. Serena celebrates her 2002 Wimbledon win in a traditional (but not-so-traditional) white tennis outfit 11. Serena is just a peach at the 2002 Home Depot Championships 12. Serena’s orange and white 2003 Wimbledon Puma outfit 13. Serena rocks a metallic empire waist at the Women’s Telecom Italia Tennis Masters in 2004 14. Serena wins in her gorgeous 2004 Wimbledon outfit 15. Serena rocks a denim tennis outfit at the 2004 US open Arthur Ashe Kids’ Day 16. Serena celebrates in this cute Nike ensemble at the 2005 Australian Open 17. Serena experiments with a little color blocking at the 2009 French Open 18. Venus gets sexy on the court at the 2010 Sony Ericsson Open 19. Venus rocks a double slit tennis dress while playing with her sister at the 2010 Australian Open 20. Serena goes pink on pink at the 2013 US Open 21. Serena looks gorgeous in Pink Cheetah at the 2014 US Open 22. More cheetah for Serena at the 2014 US Open 23. Serena wears a yellow crop top at the 2016 Australian Open 24. Serena and Venus get braided up in preparation for Rio Olympics 25. Serena Williams represents Team USA at the 2016 Rio Olympics